From: Paulo Alcantara (SUSE) <pc@cjr.nz>
Date: Fri, 23 Jun 2023 21:34:03 +0000 (+0000)
Subject: cifs: Get rid of kstrdup_const()'d paths
X-Git-Tag: v5.4.249~41
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=cf8c7aa90618ac571511235b4d63603fe46eba37;p=thirdparty%2Fkernel%2Fstable.git

cifs: Get rid of kstrdup_const()'d paths

commit 199c6bdfb04b71d88a7765e08285885fbca60df4 upstream.

The DFS cache API is mostly used with heap allocated strings.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Reviewed-by: Aurelien Aptel <aaptel@suse.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Rishabh Bhatnagar <risbhat@amazon.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/fs/cifs/dfs_cache.c b/fs/cifs/dfs_cache.c
index 4a241979c7c76..3ca65051b55ce 100644
--- a/fs/cifs/dfs_cache.c
+++ b/fs/cifs/dfs_cache.c
@@ -131,7 +131,7 @@ static inline void flush_cache_ent(struct cache_entry *ce)
 		return;
 
 	hlist_del_init_rcu(&ce->hlist);
-	kfree_const(ce->path);
+	kfree(ce->path);
 	free_tgts(ce);
 	cache_count--;
 	call_rcu(&ce->rcu, free_cache_entry);
@@ -420,7 +420,7 @@ static struct cache_entry *alloc_cache_entry(const char *path,
 	if (!ce)
 		return ERR_PTR(-ENOMEM);
 
-	ce->path = kstrdup_const(path, GFP_KERNEL);
+	ce->path = kstrndup(path, strlen(path), GFP_KERNEL);
 	if (!ce->path) {
 		kmem_cache_free(cache_slab, ce);
 		return ERR_PTR(-ENOMEM);
@@ -430,7 +430,7 @@ static struct cache_entry *alloc_cache_entry(const char *path,
 
 	rc = copy_ref_data(refs, numrefs, ce, NULL);
 	if (rc) {
-		kfree_const(ce->path);
+		kfree(ce->path);
 		kmem_cache_free(cache_slab, ce);
 		ce = ERR_PTR(rc);
 	}